Population monitoring of Lake Clark and Tazimina River sockeye salmon, Kvichak River watershed, Bristol Bay, Alaska
Dates
Year
2004
Citation
Woody, Carol Ann, 2004, Population monitoring of Lake Clark and Tazimina River sockeye salmon, Kvichak River watershed, Bristol Bay, Alaska: US Geological Survey Biological Resources Discipline Alaska Science Center, v. Study 01-095, 45 Pages.
Summary
[part of executive summary] Sockeye salmon originating from the Kvichak River watershed historically dominated valuable subsistence, sport and commercial fisheries in Bristol Bay, Alaska. In 1996 salmon runs to western Alaska declined and the Kvichak River sockeye salmon escapement average dropped from 5.7 million fish during 19551995 (range = 0.2 to 24.3 million fish) to an average of 2.1 million fish during 1996−2003 (range = 0.7 to 6.2 million fish). This decline concerned fishers and resource managers and two new escapement monitoring programs were initiated within the Kvichak River watershed to examine status and trends of two important component stocks that spawn in Lake Clark and the Tazimina River. This final report describes [...]
Summary
[part of executive summary] Sockeye salmon originating from the Kvichak River watershed historically dominated valuable subsistence, sport and commercial fisheries in Bristol Bay, Alaska. In 1996 salmon runs to western Alaska declined and the Kvichak River sockeye salmon escapement average dropped from 5.7 million fish during 19551995 (range = 0.2 to 24.3 million fish) to an average of 2.1 million fish during 1996−2003 (range = 0.7 to 6.2 million fish). This decline concerned fishers and resource managers and two new escapement monitoring programs were initiated within the Kvichak River watershed to examine status and trends of two important component stocks that spawn in Lake Clark and the Tazimina River. This final report describes findings from a 2000-2003 study with four primary objectives: 1. Estimate sockeye salmon escapement to Lake Clark and Iliamna Lake. 2. Determine age and size composition of the Lake Clark escapement. 3. Estimate sockeye salmon escapement to the Tazimina River. 4. Determine age and size composition of the Tazimina River escapement.
